Display device

ABSTRACT

The display device may include a first substrate including a plurality of pixel areas; a plurality of display elements arranged in the plurality of pixel areas on the first substrate; a second substrate facing the first substrate; a plurality of spacers arranged between the plurality of pixel areas and maintaining a constant space between the first substrate and the second substrate; and a plurality of touch sensing electrodes arranged on a surface of the second substrate which faces the first substrate. Here, each touch sensing electrode may include at least one first area and at least one second area that is electrically separated from the first area. The plurality of spacers may be arranged to correspond to the first area.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation application of U.S. patentapplication Ser. No. 16/870,623 filed on May 8, 2020, which is acontinuation application of U.S. patent application Ser. No. 16/262,707filed on Jan. 30, 2019 (now U.S. Pat. No. 10,651,245), which is acontinuation application of U.S. patent application Ser. No. 15/402,969filed on Jan. 10, 2017 (now U.S. Pat. No. 10,199,440), which claimspriority to and the benefit of Korean Patent Application No.10-2016-0006910, filed on Jan. 20, 2016, in the Korean IntellectualProperty Office, the entire contents of which are incorporated herein byreference in their entirety.

BACKGROUND 1. Technical Field

The present disclosure relates to a display device.

2. Related Art

A display device including a touch screen attached to a display panel isdeveloped. The touch screen is one of an information input device. Auser may input information by pressing or touching a touch sensor on thetouch screen, while watching images being displayed on the displaypanel.

Recently, a display device including the display panel in which thetouch screen is embedded has been developed so as to make a mobileterminal such as a smart phone or a tablet computer to be slimmer.

SUMMARY

A feature of the present disclosure is to provide an all-in-one displaydevice with touch screen which internally includes elements configuringa touch screen.

According to one embodiment of the present disclosure, a display deviceincludes a first substrate including a plurality of pixel areas; aplurality of display elements disposed in the plurality of pixel areason the first substrate; a second substrate facing the first substrate; aplurality of spacers disposed between the plurality of pixel areas andmaintaining a constant space between the first substrate and the secondsubstrate; and a plurality of touch sensing electrodes between thedisplay elements and the second substrate. Here, each touch sensingelectrode may include at least one first area and at least one secondarea that is electrically separated from the first area. The pluralityof spacers may be disposed to correspond to the first area.

The second area may have a shape which surrounds the first area in aplan view.

Each of the plurality of display elements may include a first electrodedisposed in the pixel area; a pixel defining layer disposed between theplurality of pixel areas and having an opening which extends to thefirst electrode; a light emitting layer disposed on the first electrodeand including at least a light generation layer; and a second electrodedisposed on the light emitting layer. The plurality of spacers may bedisposed on the pixel defining layer, and the second electrode mayextend to the pixel defining layer and the plurality of spacers.

The plurality of touch sensing electrodes may include a plurality ofconductive fine lines intersecting each other.

The plurality of conductive fine lines may include a plurality of firstlines extending in one direction; and a plurality of second linesextending in a direction intersecting the plurality of first lines. Theplurality of display elements may be disposed in areas which are formedby the plurality of first lines and the plurality of second lines thatare adjacent to each other and intersect each other.

The plurality of conductive fine lines may include a first conductivelayer disposed on the second substrate; a first cover film disposed onthe first conductive layer; and a second conductive layer disposed onthe first cover film and electrically connected to the first conductivelayer through a contact hole in the first cover film.

The display device may further include a second cover film covering thesecond conductive layer.

The plurality of conductive fine lines may be disposed only in thesecond area.

The display device may further include an encapsulating layer disposedon the second electrode.

A distance between the second electrode that is disposed on an uppersurface of the plurality of spacers which face the second substrate andthe second substrate may be 200 μm to 300 μm.

The display device may further include a filling material disposedbetween the first substrate and the second substrate.

The plurality of conductive fine lines in the first area may beelectrically separated from the plurality of conductive fine lines inthe second area.

The display device may further include an encapsulating layer disposedon the second electrode.

A distance between the second electrode that is disposed on an uppersurface of the plurality of spacers which face the second substrate andthe plurality of conductive fine lines may be 200 μm to 300 μm.

The display device may further include a filling material disposedbetween the first substrate and the second substrate.

A part of the plurality of touch sensing electrodes may configure aplurality of touch sensing electrode rows which are connected in onedirection and are parallel with each other, and other touch sensingelectrodes may configure a plurality of touch sensing electrode columnswhich are connected in a direction intersecting the plurality of touchsensing electrode rows and are parallel with each other.

The plurality of touch sensing electrodes may be arranged in a matrixform.

According to another embodiment of the present disclosure, a displaydevice includes a substrate including a plurality of pixel areas; aplurality of first electrodes disposed in each of the plurality of pixelareas; a pixel defining layer disposed between the plurality of pixelareas and having openings which extend to the first electrodes; a lightemitting layer disposed on the plurality of first electrodes andincluding at least one light generation layer; a plurality of spacersdisposed on the pixel defining layer; a second electrode disposed on thelight emitting layer, the pixel defining layer, and the plurality ofspacers; a second substrate facing the first substrate; and a pluralityof touch sensing electrodes between the second electrode and the secondsubstrate.

Each touch sensing electrode may include at least one open portion andthe plurality of spacers may be disposed in an area corresponding to theopen portion.

According to still another embodiment of the present disclosure, adisplay device includes a substrate including a plurality of pixelareas; a plurality of first electrodes disposed in each of the pluralityof pixel areas; a pixel defining layer disposed between the plurality ofpixel areas and having openings which extend to the plurality of firstelectrodes; a light emitting layer disposed on the plurality of firstelectrodes and including at least one light generation layer; aplurality of spacers disposed on the pixel defining layer; a secondelectrode disposed on the light emitting layer, the pixel defininglayer, and the plurality of spacers; a second substrate facing the firstsubstrate; and a plurality of touch sensing electrodes between thesecond electrode and the second.

Each touch sensing electrode may internally include a separated areawhich is electrically separated from other areas and the plurality ofconductive fine lines which are arranged in the separated area may beelectrically separated from the plurality of conductive fine lines whichare arranged in the other areas. The plurality of spacers may bedisposed in an area corresponding to the separated area.

As described above, a display device may internally include elementswhich configure a touch screen. Hence, the display device can beslimmer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view illustrating a display device according toan example of the present disclosure.

FIG. 2 is a plan view illustrating a first substrate of FIG. 1.

FIG. 3 and FIG. 4 are plan views illustrating a second substrate of FIG.1.

FIG. 5 is a plan view illustrating an area corresponding to a touchsensing electrode illustrated in FIG. 3.

FIG. 6 is an enlarged plan view of an area EA1 of FIG. 5.

FIG. 7 is a sectional view taken along line I-I′ of FIG. 6.

FIG. 8 is a sectional view taken along line II-II′ of FIG. 6.

FIG. 9 is an enlarged view of an area EA2 of FIG. 8.

FIG. 10 and FIG. 11 are sectional views illustrating a display deviceaccording to another embodiment of the present disclosure.

FIG. 12 is a partial plan view illustrating a display device accordingto still another embodiment of the present disclosure.

FIG. 13 is an enlarged plan view of an area EA3 of FIG. 12.

FIG. 14 is a sectional view taken along line III-III′ of FIG. 13.

FIG. 15 is a sectional view taken along line IV-IV′ of FIG. 13.

FIG. 16 and FIG. 17 are sectional views illustrating a display deviceaccording to still another embodiment of the present disclosure.

FIG. 18 is a partial plan view illustrating a display device accordingto still another embodiment of the present disclosure.

FIG. 19 is an enlarged plan view of an area EA4 of FIG. 18.

FIG. 20 is a sectional view taken along line V-V′ of FIG. 19.

FIG. 21 is a partial plan view illustrating a display device accordingto still another embodiment of the present disclosure.

FIG. 22 is an enlarged plan view of an area EA5 of FIG. 21.

FIG. 23 is a sectional view taken along line VI-VI′ of FIG. 22.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, preferred embodiments of the present disclosure will bedescribed in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating a display device according toan example of the present disclosure, FIG. 2 is a plan view illustratinga first substrate 110 of FIG. 1, and FIG. 3 and FIG. 4 are plan viewsillustrating a second substrate 120 of FIG. 1.

Referring to FIG. 1 to FIG. 4, the display device may include the firstsubstrate 110, a plurality of display elements (not illustrated) whichare arranged in the first substrate 110, the second substrate 120 whichfaces the first substrate 110, and a plurality of touch sensingelectrodes TSE that are arranged on a surface of the second substrate120 which faces the first substrate 110.

The first substrate 110 may include a display area DA and a non-displayarea NDA. The display area DA may include a plurality of pixel areas.The non-display area NDA may be disposed to be adjacent to the displayarea DA.

In addition, the first substrate 110 may include a plurality of gatelines (not illustrated), a plurality of data lines (not illustrated)intersecting the plurality of gate lines, and a plurality of thin filmtransistors (not illustrated) which are connected to the plurality ofgate lines and the plurality of data lines. Each display element may beconnected to one of the plurality of thin film transistors.

The plurality of display elements may be arranged in the plurality ofpixel areas on the first substrate 110. The plurality of displayelements may be any one of a liquid crystal display (LCD) device, anelectrophoretic display (EPD) device, an electrowetting display (EWD)device, and an organic light emitting display (OLED) device. Meanwhile,for the sake of convenient description, an example in which the organiclight emitting display element is used for the display element will behereinafter described.

Each of the plurality of display elements may include a first electrodewhich is connected to the thin film transistor, a light emitting layerwhich is disposed on the first electrode, and a second electrode whichis disposed on the light emitting layer. The light emitting layer mayinclude a light generation layer which generates light by recombiningholes with electrons which are injected through the first electrode andthe second electrode.

The second substrate 120 may include a sensing area SA and a non-sensingarea NSA. The sensing area SA may correspond to the display area DA ofthe first substrate 110. The non-sensing area NSA may be disposed to beadjacent to the sensing area SA. In addition, the non-sensing area NSAmay correspond to the non-display area NDA of the first substrate 110.

The plurality of touch sensing electrodes TSE may be arranged in thesensing area SA on a surface of the second substrate 120 which faces thefirst substrate 110, and may be connected to a pad portion PDA through asensing line SL. The plurality of touch sensing electrodes TSE may bearranged in various forms according to a touch sensing type of thedisplay device.

For example, the touch sensing type of the display device may be amutual capacitance touch screen type, as illustrated in FIG. 3. Here,some of the plurality of touch sensing electrodes TSE may be connectedin one direction, and may configure a plurality of touch sensingelectrode rows parallel to each other. In addition, the other touchsensing electrodes TSE may be connected in a direction intersecting thetouch sensing electrode rows, and may configure a plurality of touchsensing electrode columns parallel to each other. The touch sensingelectrode rows and the touch sensing electrode columns may berespectively connected to pads of the pad portion PDA through theplurality of sensing lines SL.

In addition, the touch sensing type of the display device may be aself-capacitance touch screen type, as illustrated in FIG. 4. Here, theplurality of touch sensing electrodes TSE may be arranged in a matrixform, and the touch sensing electrode TSE may be connected the pads ofthe pad portion PDA through the plurality of sensing lines SL.

FIG. 5 is a plan view illustrating an area corresponding to the touchsensing electrode TSE illustrated in FIG. 3, FIG. 6 is an enlarged planview of an area EA1 of FIG. 5, FIG. 7 is a sectional view taken alongline I-I′ of FIG. 6, FIG. 8 is a sectional view taken along line II-II′of FIG. 6, FIG. 9 is an enlarged view of an area EA2 of FIG. 8.

Referring to FIG. 1 to FIG. 9, a display device may include the firstsubstrate 110, a plurality of display elements DD which are arranged onthe first substrate 110, a plurality of spacers SP which are arrangedbetween the plurality of display elements DD, the second substrate 120which faces the first substrate 110, and the plurality of touch sensingelectrodes TSE which are arranged on a surface of the second substrate120 which faces the first substrate 110.

The first substrate 110 may include the display area DA and thenon-display area NDA. The display area DA may include a plurality ofpixel areas. The non-display area NDA may be disposed to be adjacent tothe display area DA. In addition, the first substrate 110 may include abase substrate SUB, and at least one thin film transistor TFT which isdisposed in each pixel area on the base substrate SUB.

Light may pass through the base substrate SUB which contains atransparent insulating material. In addition, the base substrate SUB maybe a rigid substrate or a flexible substrate. The rigid substrate mayinclude a glass substrate, a quartz substrate, a glass ceramic substrateand a crystalline glass substrate. The flexible substrate may include afilm substrate which contains organic polymer, and a plastic substrate.For example, the flexible substrate may include any one ofpolyethersulfone (PES), polyacrylate, polyetherimide (PEI), polyethylenenaphthalate (PEN), polyethylene terephthalate (PET), polyphenylenesulfide (PPS), polyarylate (PAR), polyimide (PI), polycarbonate (PC),triacetate cellulose (TAC), and cellulose acetate propionate (CAP). Inaddition, the flexible substrate may include fiber glass reinforcedplastic (FRP).

A material which is contained in the base substrate SUB may haveresistance (or heat resistance) to high temperature when the displaydevice is manufactured.

A buffer layer BUL may be disposed between the base substrate SUB andthe thin film transistor TFT. The buffer layer BUL may include at leastone of a silicon oxide and a silicon nitride. For example, the bufferlayer BUL may include a first insulating film including a silicon oxideand a second insulating film which is disposed on the first insulatingfilm and includes a silicon nitride. The buffer layer BUL may preventimpurities from diffusing into the thin film transistor TFT from thebase substrate SUB. In addition, the buffer layer BUL may planarize asurface of the base substrate SUB.

The thin film transistor TFT may be connected to a gate line and a dataline. The thin film transistor TFT may include a semiconductor layerSCL, a gate electrode GE, a source electrode SE, and a drain electrodeDE.

The semiconductor layer SCL may be disposed on the buffer layer BUL. Thesemiconductor layer SCL may contain one of amorphous Si, polycrystallineSi, an oxide semiconductor, and an organic semiconductor. An area whichis connected to the source electrode SE and the drain electrode DE maybe respectively a source area and a drain area into which impurities aredoped or injected. An area between the source electrode SE and the drainelectrode DE may be a channel area.

Meanwhile, if the semiconductor layer SCL contains an oxidesemiconductor, a light blocking film for blocking light which isincident on the semiconductor layer SCL may be disposed on or under thesemiconductor layer SCL, while not illustrated.

A gate insulating film GI may be disposed on the semiconductor layerSCL. The gate insulating film GI may cover the semiconductor layer SCLand may insulate the semiconductor layer SCL and the gate electrode GE.The gate insulating film GI may contain at least one of a silicon oxideand a silicon nitride.

The gate electrode GE may be disposed on the gate insulating film GI.The gate electrode GE may be connected to the gate line. The gateelectrode GE may contain a low resistance conductive material, and mayoverlap the semiconductor layer SCL.

An interlayer insulating film ILD may be disposed on the gate electrodeGE. The interlayer insulating film ILD may include the same material asthe gate insulating film GI. The interlayer insulating film ILD mayinsulate the source electrode SE, the drain electrode DE, and the gateelectrode GE.

Contact holes which penetrate the gate insulating film GI and theinterlayer insulating film ILD may expose the source area and the drainarea of the semiconductor layer SCL.

The source electrode SE and the drain electrode DE may be disposed onthe interlayer insulating film ILD so as to be separated from eachother. The source electrode SE and the drain electrode DE may contain alow resistance conductive material. One end of the source electrode SEmay be connected to the data line. The other end of the source electrodeSE may be connected to the source area through one of the contact holes.One end of the drain electrode DE may be connected to the drain areathrough another contact hole. The other end of the drain electrode DEmay be connected to any one of the plurality of display elements DD.

Meanwhile, the present embodiment is described by using a case where thethin film transistor TFT has a top gate structure as an example, but isnot limited to this. For example, the thin film transistor TFT may havea bottom gate structure.

A protection film PSV may be disposed on the base substrate SUB in whichthe thin film transistor TFT is disposed. The protection film PSV maycover the thin film transistor TFT. The drain electrode DE may beexposed by removing a part of the protection film PSV.

The protection film PSV may include at least one film. For example, theprotection film PSV may include an inorganic protection film and anorganic protection film which is disposed on the inorganic protectionfilm. The inorganic protection film may contain at least one of asilicon oxide and a silicon nitride. The organic protection film mayinclude any one of acryl, polyimide (PI), polyamide (PA), andbenzocyclobutene (BCB). In addition, the organic protection film may betransparent and flexible, thereby being able to planarize a lowerstructure by reducing roughness.

The plurality of display elements DD may be disposed on the protectionfilm PSV. The plurality of display elements DD may include a firstelectrode AE which is connected to the drain electrode DE, a lightemitting layer OL which is disposed on the first electrode AE, and asecond electrode CE which is disposed on the light emitting layer OL.

One of the first electrode AE and the second electrode CE may be ananode, and the other electrode may be a cathode. For example, the firstelectrode AE may be the anode and the second electrode CE may thecathode.

In addition, at least one of the first electrode AE and the secondelectrode CE may be a transmission type electrode. For example, if thedisplay element an organic light emitting element of a rear lightemission type, the first electrode AE may be a transmission typeelectrode, and the second electrode CE may be a reflection typeelectrode. If the display element is an organic light emitting elementof a front surface light emission type, the first electrode may be areflection type electrode, and the second electrode may be atransmission type electrode. If the display element is an organic lightemitting element of a both side light emission type, both the firstelectrode AE and the second electrode CE may be a transmission typeelectrode. The present embodiment may be described by using a case wherethe display element DD is an organic light emitting element of a frontsurface light emission type and the first electrode AE is an anodeelectrode, as an example.

The first electrode AE may be disposed on the protection film PSV ateach pixel area. The first electrode AE may include a reflective film(not illustrated) which can reflect light, and a conductive film (notillustrated) which is disposed on an upper portion or a lower portion ofthe reflective film. At least one of the transparent conductive film andthe reflective film may be connected to the drain electrode DE.

The reflective film may contain a material which can reflect light. Forexample, the reflective film may include at least one of aluminum (AL),silver (Ag), chrome (Cr), molybdenum (Mo), platinum (Pt), nickel (Ni),and an alloy of those.

The transparent conductive film may include a transparent conductiveoxide. For example, the transparent conductive film may contain at leastone transparent conductive oxide of indium tin oxide (ITO), indium zincoxide (IZO), aluminum zinc oxide (AZO), gallium doped zinc oxide (GZO),zinc tin oxide (ZTO), gallium tin oxide (GTO), and fluorine doped tinoxide (FTO).

A pixel defining layer PDL may be disposed on the first electrode AE.The pixel defining layer PDL may be dispose between the plurality ofpixel areas, and may include an open portion, sometime called openings,which extends to and exposes the first electrode AE. In addition, thepixel defining layer PDL may overlap an edge portion of the firstelectrode AE. Hence, the open portion of the pixel defining layer PDLmay expose the most part of a surface of the first electrode AE whichfaces the second substrate 120.

The pixel defining layer PDL may contain an organic insulating material.For example, the pixel defining layer PDL may contain at least one ofpolystyrene, polymethylmethacrylate (PMMA), polyacrylonitrile (PAN),polyamide (PA), polyimide (PI), polyarylether (PAE), heterocyclicpolymer, parylene, epoxy, benzocyclobutene (BCB), siloxane based resin,silane based resin.

The plurality of spacers SP may be arranged on the pixel defining layerPDL. The plurality of spacers SP may maintain a constant space betweenthe first substrate 110 and the second substrate 120. Even if externalpressure is applied to the first substrate 110 or the second substrate120, the plurality of spacers SP may prevent the plurality of displayelements DD from being damaged since the second substrate 120 isprevented from coming into contact with the plurality of displayelements DD.

The spacer SP may contain an organic insulating material. For example,the spacer SP may contain the same material as the pixel defining layerPDL.

The light emitting layer OL may be disposed on a surface of the firstelectrode AE which is exposed by the open portion of the pixel defininglayer PDL. The light emitting layer OL may have a multilayer thin filmstructure including at least a light generation layer (LGL). Forexample, the light emitting layer OL may include a hole injection layer(HIL) into which holes are injected, a hole transport layer (HTL) whichhas excellent transportability and increases opportunity forrecombination of holes and electrons by suppressing movement of theelectrons that are not combined in the light generation layer, the lightgeneration layer which emits light by recombination of electrons andholes which are injected, a hole blocking layer (HBL) which suppressesmovement of holes which are not combined in the light generation layer,an electron transport layer which smoothly transports electrons to thelight generation layer, and an electron injection layer (EIL) whichinjects electrons.

A color of light which is generated in the light generation layer may beany one of red, green, blue, and white, and the present embodiment isnot limited to this. For example, a color of light which is generated inthe light generation layer of the light emitting layer OL may be one ofmagenta, cyan, and yellow.

The hole injection layer, the hole transport layer, the hole blockinglayer, the electron transport layer, and the electron injection layermay be a common film which is connected to each other at adjacent pixelareas.

The second electrode CE may be disposed on the light emitting layer OL.In addition, the second electrode CE may extend to the pixel defininglayer PDL and the plurality of spacers SP.

The second electrode CE may be a transflective film. For example, thesecond electrode CE may be a thin metal layer with a thickness thatlight can transmit. A part of light which is generated in the lightgeneration layer may transmit through the second electrode CE and theother light from the light generation layer may be reflected from thesecond electrode CE.

The second electrode CE may contain a material with a work functionlower than that of the transparent conductive film of the firstelectrode AE. For example, the second electrode CE may contain at leastone of molybdenum (Mo), tungsten (W), silver (Ag), magnesium (Mg),aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni),neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca),and an alloy of those.

A part of light which is emitted from the light emitting layer OL maynot transmit through the second electrode CE and light reflected fromthe second electrode CE may be reflected from the reflective film of thefirst electrode AE. That is, light which is emitted from the lightemitting layer OL may be resonate between the reflective film of thefirst electrode AE and the second electrode CE. Light extractionefficiency of the plurality of display elements DD may be increased bythe resonance of light.

A distance between the reflective film of the first electrode AE and thesecond electrode CE may differ according to a color of light which isgenerated in the light generation layer of the light emitting layer OL.That is, the distance between the reflective film of the first electrodeAE and the second electrode CE may be adjusted to be consistent with aresonance distance in accordance with the color of light which isgenerated in the light generation layer of the light emitting layer OL.

The second substrate 120 may separate the plurality of display elementsDD from an external environment. In addition, the second substrate 120may contain the same material as the base substrate SUB. The secondsubstrate 120 may adhere to the first substrate 110 by a sealant.

The second substrate 120 may include the sensing area SA, and thenon-sensing area NSA which is disposed to be adjacent to the sensingarea SA. The sensing area SA may correspond to the display area DA ofthe first substrate 110. The non-sensing area NSA may be disposed to beadjacent to the sensing area SA. In addition, the non-sensing area NSAmay correspond to the non-display area NDA of the first substrate 110.

The touch sensing electrode TSE may be disposed between the secondelectrode CE of the display elements DD and the second substrate 120 inthe sensing area SA. For example, the touch sensing electrode TSE may bedisposed in the sensing area SA on a surface of the second substrate 120which faces the first substrate 110.

The touch sensing electrode TSE may include at least one first area TSE1and a second area TSE2 which is electrically separated from the firstarea TSE1. The first area TSE1 may be electrically separated. Inaddition, the second area TSE2 may have a shape which surrounds thefirst area TSE1, in a plan view. That is, the first area TSE1 may havean island shape which is separated within the second area TSE2.

The plurality of touch sensing electrodes TSE may include a metal mesh.In detail, the plurality of touch sensing electrodes TSE may include aplurality of conductive fine lines CFL intersecting each other. Theplurality of conductive fine lines CFL may include a plurality of firstlines CFL1 which extend in one direction, and a plurality of secondlines CFL2 which extend in a direction intersecting, e.g.,perpendicularly, the plurality of first lines CFL1.

The conductive fine line CFL may include at least one conductive layer.For example, the conductive fine line CFL may include a singleconductive layer including at least one of Ag, Al, Cu, Vr, Ni, Au, andan alloy of those.

In addition, the conductive fine line CFL may include a plurality ofconductive layers which are stacked. For example, the conductive fineline CFL may include a first conductive layer MCL1 which is disposed onthe second substrate 120, a first cover film CVL1 which covers the firstconductive layer MCL1, and a second conductive layer MCL2 which isdisposed on the first cover film CVL1.

The first conductive layer MCL1 and the second conductive layer MCL2 mayrespectively contain a material with high conductivity. For example, thefirst conductive layer MCL1 and the second conductive layer MCL2 maycontain at least one of Ag, Al, Cu, Vr, Ni, Au, and an alloy of those.The first conductive layer MCL1 and the second conductive layer MCL2 maybe electrically connected to each other through a contact hole formed inthe first cover film CVL1.

In addition, a second cover film CVL2 may be disposed on the secondconductive layer MCL2.

The first cover film CVL1 and the second cover film CVL2 mayrespectively contain an insulating material. For example, the firstcover film CVL1 and the second cover film CVL2 may contain at least oneof a silicon oxide and a silicon nitride.

As described above, the conductive fine line CFL may include the firstconductive layer MCL1 and the second conductive layer MCL2 which areelectrically connected to each other. Accordingly, resistance of theconductive fine line CFL may be reduced.

An area which is formed by the plurality of first lines CFL1 with theplurality of second lines CFL2 may correspond to the pixel area. Thatis, the plurality of display elements DD may be arranged in an areawhich is formed by intersecting the plurality of first lines CFL1 withthe plurality of second lines CFL2.

The conductive fine line CFL may be disposed only in the second areaTSE2. The plurality of conductive fine lines CFL may not be arranged inthe first area TSE1. That is, the first area TSE1 may be an open portionwhich is disposed in the touch sensing electrode TSE.

Meanwhile, the plurality of spacers SP may be arranged only in an areacorresponding to the first area TSE1, and may not be arranged in an areacorresponding to the second area TSE2. In addition, the plurality ofconductive fine lines CFL which are included in the touch sensingelectrode TSE may not be arranged in the first area TSE1. Hence, it ispossible to prevent a parasitic capacitor from being formed between thesecond electrode CE that is disposed on an upper surface of the spacerSP which faces the second substrate 120 and the conductive fine lineCFL.

If the plurality of conductive fine lines CFL are arranged in the firstarea TSE1, the second electrode CE and the conductive fine line CFL maycome into contact with each other. If the second electrode CE and theconductive fine line CFL may come into contact with each other, touchingthe display device may not be performed.

In addition, if the conductive fine line CFL is disposed in the firstarea TSE1, a parasitic capacitor may be formed between the secondelectrode CE and the conductive fine line CFL. A distance between thesecond electrode CE that is disposed on the upper surface of the spacerSP which faces the second substrate 120 and the conductive fine line CFLmay be much shorter than a distance between the second electrode CE andthe conductive fine line CFL in an area other than the area in which theplurality of spacers SP are arranged. Hence, parasitic capacitance ofthe parasitic capacitor which is formed between the second electrode CEthat is disposed on the upper surface of the spacer SP which faces thesecond substrate 120 and the conductive fine line CFL may be much largerthan parasitic capacitance of a parasitic capacitor which is formedbetween the second electrode CE and the conductive fine line CFL in anarea other than the area in which the plurality of spacers SP arearranged. The parasitic capacitor may reduce touch sensitivity of thedisplay device.

Hereinafter, another embodiment of the present disclosure will bedescribed with reference to FIG. 10 to FIG. 16. In FIG. 10 to FIG. 16,the same symbols or reference numerals will be attached to the sameconfiguration elements as in FIG. 1 to FIG. 8, and description thereofwill be briefly made. In addition, in order to avoid repetitivedescription thereof, different points from those of FIG. 1 to FIG. 8will be mainly described.

FIG. 10 and FIG. 11 are sectional views illustrating a display deviceaccording to another embodiment of the present disclosure. FIG. 10 is asectional view taken along line I-I′ of FIG. 6 and FIG. 11 is asectional view taken along line II-II′ of FIG. 6.

Referring to FIG. 1 to FIG. 6, and FIG. 10 and FIG. 11, the displaydevice may include the first substrate 110, the plurality of displayelements DD which are arranged on the first substrate 110, the pluralityof spacers SP which are arranged between the plurality of displayelements DD, the second substrate 120 which faces the first substrate110, and the plurality of touch sensing electrodes TSE which arearranged on a surface of the second substrate 120 which faces the firstsubstrate 110.

The first substrate 110 may include the display area DA and thenon-display area NDA. The display area DA may include a plurality ofpixel areas. The non-display area NDA may be disposed to be adjacent tothe display area DA. In addition, the first substrate 110 may includethe base substrate SUB, and at least one thin film transistor TFT whichis disposed in each pixel area on the base substrate SUB.

The protection film PSV may be disposed on the base substrate SUB inwhich the thin film transistor TFT is disposed. That is, the protectionfilm PSV may cover the thin film transistor TFT.

The plurality of display elements DD and the plurality of spacers SP maybe arranged on the protection film PSV. The plurality of displayelements DD may include the first electrode AE which is connected to thethin film transistor TFT, the pixel defining layer PDL which exposes thefirst electrode AE, the light emitting layer OL which is disposed on thefirst electrode AE that is exposed by the pixel defining layer PDL, andthe second electrode CE which is disposed on the light emitting layerOL. The plurality of spacers SP may be arranged on the pixel defininglayer PDL. The second electrode CE may extend to the pixel defininglayer PDL and the plurality of spacers SP. The plurality of spacers SPmay maintain a constant space between the first substrate 110 and thesecond substrate 120.

A filling material FM may be disposed between the first substrate 110and the second substrate 120. The filling material FM may contain amaterial which can reduce external shock or external pressure. Forexample, the filling material FM may contain polymer. The fillingmaterial FM may prevent the first substrate 110 or the second substrate120 from being damaged due to the external shock or the externalpressure. In addition, the filling material FM may prevent the pluralityof display elements DD from being damaged due to the external shock orthe external pressure.

The second substrate 120 may include the sensing area SA and anon-sensing area NSA which is disposed to be adjacent to the sensingarea SA. The sensing area SA may correspond to the display area DA ofthe first substrate 110. The non-sensing area NSA may be disposed to beadjacent to the sensing area SA. In addition, the non-sensing area NSAmay correspond to the non-display area NDA of the first substrate 110.

The touch sensing electrode TSE may be disposed between the secondelectrode CE of the display elements DD and the second substrate 120 inthe sensing area SA. For example, the plurality of touch sensingelectrodes TSE may be arranged in the sensing area SA on a surface ofthe second substrate 120 which faces the first substrate 110.

The touch sensing electrode TSE may include at least one first area TSE1and the second area TSE2 which is separated from the first area TSE1.The second area TSE2 may have a shape which surrounds the first areaTSE1. That is, the first area TSE1 may have an island shape which isseparated within the second area TSE2.

The plurality of touch sensing electrodes TSE may include a plurality ofconductive fine lines CFL intersecting each other. In addition, theplurality of conductive fine lines CFL may be arranged only in thesecond area TSE2. That is, the plurality of conductive fine lines CFLmay not be arranged in the first area TSE1.

The plurality of spacers SP may be arranged only in an areacorresponding to the first area TSE1, and may not be arranged in an areacorresponding to the second area TSE2.

Meanwhile, an encapsulating layer ECL may be disposed on the secondelectrode CE. The encapsulating layer ECL may prevent oxygen andmoisture from penetrating into the plurality of display elements DD.

The encapsulating layer ECL may include a plurality of inorganic films(not illustrated) and a plurality of organic films (not illustrated).For example, the encapsulating layer ECL may include a plurality of unitencapsulating layers, each including the inorganic film and the lightgeneration layer disposed on the inorganic film. In addition, theinorganic film may be disposed on a lowermost portion and an uppermostportion of the encapsulating layer ECL. The inorganic film may containat least one of a silicon oxide, a silicon nitride, a siliconoxynitride, an aluminum oxide, a titanium oxide, a zirconium oxide, anda tin oxide. A thickness of the encapsulating layer ECL may be 200 μm to300 μm. A distance between the second electrode CE that is disposed onan upper surface of the spacer SP which faces the second substrate 120and the second substrate 120 may be 200 μm to 300 μm.

Even if a conductor may be disposed in the first area TSE1, theencapsulating layer ECL separates the second electrode CE, which isdisposed on an upper surface of the plurality of spacers SP which facethe second substrate 120, from the conductor, and thereby, parasiticcapacitance of a parasitic capacitor may be reduced.

FIG. 12 is a partial plan view illustrating a display device accordingto still another embodiment of the present disclosure, FIG. 13 is anenlarged plan view of an area EA3 of FIG. 12, FIG. 14 is a sectionalview taken along line III-III′ of FIG. 13, and FIG. 15 is a sectionalview taken along line IV-IV′ of FIG. 13.

Referring to FIG. 1 to FIG. 4, and FIG. 12 to FIG. 15, a display devicemay include the first substrate 110, the plurality of display elementsDD which are arranged on the first substrate 110, the plurality ofspacers SP which are arranged between the plurality of display elementsDD, the second substrate 120 which faces the first substrate 110, andthe plurality of touch sensing electrodes TSE that are arranged on asurface of the second substrate 120 which faces the first substrate 110.

The first substrate 110 may include the display area DA and thenon-display area NDA. The display area DA may include a plurality ofpixel areas. The non-display area NDA may be disposed to be adjacent tothe display area DA. In addition, the first substrate 110 may includethe base substrate SUB, and at least one thin film transistor TFT whichis disposed in each pixel area on the base substrate SUB.

The protection film PSV may be disposed on the base substrate SUB inwhich the thin film transistor TFT is disposed.

The plurality of display elements DD may be arranged on the protectionfilm PSV. The plurality of display elements DD may include the firstelectrode AE which is connected to the thin film transistor TFT, thepixel defining layer PDL which exposes the first electrode AE, the lightemitting layer OL which is disposed on the first electrode AE that isexposed by the pixel defining layer PDL, and the second electrode CEwhich is disposed on the light emitting layer OL. The plurality ofspacers SP may be arranged on the pixel defining layer PDL. The secondelectrode CE may extend to the pixel defining layer PDL and theplurality of spacers SP. The spacer SP may maintain a constant spacebetween the first substrate 110 and the second substrate 120.

The encapsulating layer ECL may be disposed on the second electrode CE.The encapsulating layer ECL may include a plurality of inorganic films(not illustrated) and a plurality of organic films (not illustrated). Athickness of the encapsulating layer ECL may be 200 μm to 300 μm.

A filling material FM may be disposed between the first substrate 110and the second substrate 120. The filling material FM may fill the spacebetween the first substrate 110 and the second substrate 120, andthereby external shock which is applied to the first substrate 110 orthe second substrate 120 may be reduced.

The second substrate 120 may include the sensing area SA and thenon-sensing area NSA which is disposed to be adjacent to the sensingarea SA. The sensing area SA may correspond to the display area DA ofthe first substrate 110. The non-sensing area NSA may be disposed to beadjacent to the sensing area SA. In addition, the non-sensing area NSAmay correspond to the non-display area NDA of the first substrate 110.

The touch sensing electrode TSE may be disposed between the secondelectrode CE of the display elements DD and the second substrate 120 inthe sensing area SA. For example, the plurality of touch sensingelectrodes TSE may be arranged in the sensing area SA on a surface ofthe second substrate 120 which faces the first substrate 110.

The touch sensing electrode TSE may include at least one first area TSE1and the second area TSE2 which is electrically separated from the firstarea TSE1. The first area TSE1 may be electrically separated. Inaddition, the second area TSE2 may have a shape which surrounds thefirst area TSE1 in a plan view. That is, the first area TSE1 may have anisland shape which is separated within the second area TSE2.

The plurality of touch sensing electrodes TSE may include the pluralityof conductive fine lines CFL intersecting each other. The plurality ofconductive fine lines CFL may include the plurality of first lines CFL1which extend in one direction, and the plurality of second lines CFL2which extend in a direction intersecting the plurality of first linesCFL1.

Meanwhile, the plurality of conductive fine lines CFL which are arrangedin the first area TSE1 may be electrically separated from the pluralityof conductive fine lines CFL which are arranged in the second area TSE2.That is, the plurality of conductive fine lines CFL which are arrangedin the first area TSE1 may be in a state of being electrically separatedfrom each other.

Meanwhile, the plurality of spacers SP may be arranged only in an areacorresponding to the first area TSE1, and may not be arranged in an areacorresponding to the second area TSE2. In addition, the plurality ofconductive fine lines CFL which are arranged in the first area TSE1 maybe electrically separated from each other. Hence, it is possible toprevent a parasitic capacitor from being formed between the secondelectrode CE that is disposed on a surface of the spacer SP which facesthe second substrate 120 and the conductive fine line CFL.

In addition, since a thickness of the encapsulating layer ECL may be 200μm to 300 μm, a distance between the second electrode CE that isdisposed on an upper surface of the spacer SP and the conductive fineline CFL of the touch sensing electrode TSE may be 200 μm to 300 μm.Hence, parasitic capacitance of the parasitic capacitor can be reducedby the distance between the second electrode CE that is disposed on anupper surface of the spacer SP and the conductive fine line CFL of thetouch sensing electrode TSE.

FIG. 16 and FIG. 17 are sectional views illustrating a display deviceaccording to still another embodiment of the present disclosure. FIG. 16is a sectional view taken along line III-III′ of FIG. 13, and FIG. 17 isa sectional view taken along line IV-IV′ of FIG. 13.

Referring to FIG. 1 to FIG. 4, FIG. 12, FIG. 13, FIG. 16 and FIG. 17,the display device may include the first substrate 110, the plurality ofdisplay elements DD which are arranged on the first substrate 110, theplurality of spacers SP which are arranged between the plurality ofdisplay elements DD, the second substrate 120 which faces the firstsubstrate 110, and the plurality of touch sensing electrodes TSE whichare arranged on a surface of the second substrate 120 which faces thefirst substrate 110.

The first substrate 110 may include the display area DA and thenon-display area NDA. The display area DA may include a plurality ofpixel areas. The non-display area NDA may be disposed to be adjacent tothe display area DA. In addition, the first substrate 110 may includethe base substrate SUB, and at least one thin film transistor TFT whichis disposed in each pixel area on the base substrate SUB.

The protection film PSV may be disposed on the base substrate SUB inwhich the thin film transistor TFT is disposed.

The plurality of display elements DD may be arranged on the protectionfilm PSV. The plurality of display elements DD may include the firstelectrode AE which is connected to the thin film transistor TFT, thepixel defining layer PDL which exposes the first electrode AE, the lightemitting layer OL which is disposed on the first electrode AE that isexposed by the pixel defining layer PDL, and the second electrode CEwhich is disposed on the light emitting layer OL. The plurality ofspacers SP may be arranged on the pixel defining layer PDL. The secondelectrode CE may extend to the pixel defining layer PDL and theplurality of spacers SP. The plurality of spacers SP may maintain aconstant space between the first substrate 110 and the second substrate120.

The second substrate 120 may include the sensing area SA and anon-sensing area NSA which is disposed to be adjacent to the sensingarea SA. The sensing area SA may correspond to the display area DA ofthe first substrate 110. The non-sensing area NSA may be disposed to beadjacent to the sensing area SA. In addition, the non-sensing area NSAmay correspond to the non-display area NDA of the first substrate 110.

The touch sensing electrode TSE may be disposed between the secondelectrode CE of the display elements DD and the second substrate 120 inthe sensing area SA. For example, the plurality of touch sensingelectrodes TSE may be arranged in the sensing area SA on a surface ofthe second substrate 120 which faces the first substrate 110.

The touch sensing electrode TSE may include at least one first area TSE1and the second area TSE2 which is separated from the first area TSE1.The second area TSE2 may have a shape which surrounds the first areaTSE1. That is, the first area TSE1 may have an island shape which isseparated within the second area TSE2.

The plurality of touch sensing electrodes TSE may include a plurality ofconductive fine lines CFL intersecting each other. The plurality ofconductive fine lines CFL which are arranged in the first area TSE1 maybe electrically separated from the plurality of conductive fine linesCFL which are arranged on the second area TSE2. That is, the pluralityof conductive fine lines CFL which are arranged in the first area TSE1may be electrically separated from each other.

The filling material FM may be disposed between the first substrate 110and the second substrate 120. The filling material FM may fill the spacebetween the first substrate 110 and the second substrate 120, andthereby external shock which is applied to the first substrate 110 orthe second substrate 120 may be reduced.

In addition, the filling material FM may maintain a constant spacebetween the first substrate 110 and the second substrate 120.Particularly, the filling material FM may maintain a distance betweenthe second electrode CE which is disposed on an upper surface of thespacer SP and the plurality of conductive fine lines CFL of theplurality of touch sensing electrodes TSE as 200 μm to 300 μm.

Parasitic capacitance of a parasitic capacitor can be reduced by thedistance between the second electrode CE which is disposed on the uppersurface of the spacer SP and the plurality of conductive fine lines CFLof the plurality of touch sensing electrodes TSE

FIG. 18 is a partial plan view illustrating a display device accordingto still another embodiment of the present disclosure, FIG. 19 is anenlarged plan view of an area EA4 of FIG. 18, and FIG. 20 is a sectionalview taken along line V-V′ of FIG. 19.

Referring to FIG. 1 to FIG. 4, and FIG. 18 to FIG. 20, a display devicemay include the first substrate 110, the plurality of display elementsDD which are arranged on the first substrate 110, the plurality ofspacers SP which are arranged between the plurality of display elementsDD, the second substrate 120 which faces the first substrate 110, andthe plurality of touch sensing electrodes TSE that are arranged on asurface of the second substrate 120 which faces the first substrate 110.

The first substrate 110 may include the display area DA and thenon-display area NDA. The display area DA may include a plurality ofpixel areas. The non-display area NDA may be disposed to be adjacent tothe display area DA. In addition, the first substrate 110 may includethe base substrate SUB, and at least one thin film transistor TFT whichis disposed in each pixel area on the base substrate SUB.

The protection film PSV may be disposed on the base substrate SUB inwhich the thin film transistor TFT is disposed.

The plurality of display elements DD may be arranged on the protectionfilm PSV. The plurality of display elements DD may include the firstelectrode AE which is connected to the thin film transistor TFT, thepixel defining layer PDL which exposes the first electrode AE, the lightemitting layer OL which is disposed on the first electrode AE that isexposed by the pixel defining layer PDL, and the second electrode CEwhich is disposed on the light emitting layer OL.

The plurality of spacers SP may be arranged on the pixel defining layerPDL. The second electrode CE may extend to the pixel defining layer PDLand the plurality of spacers SP. The spacer SP may maintain a constantspace between the first substrate 110 and the second substrate 120.

The second substrate 120 may separate the plurality of display elementsDD from an external environment. In addition, the second substrate 120may contain the same material as the base substrate SUB. The secondsubstrate 120 may adhere to the first substrate 110 by a sealant.

The touch sensing electrode TSE may be disposed between the displayelements DD and the second substrate 120 in the sensing area SA. Forexample, the plurality of touch sensing electrodes TSE may be arrangedon a surface of the second substrate 120 which faces the first substrate110. The touch sensing electrode TSE may include at least one first areaTSE1 and at least one second area TSE2 which is electrically separatedfrom the first area TSE1. The first area TSE1 may be electricallyseparated from other areas. In addition, the second area TSE2 may have ashape which surrounds the first area TSE1 in a plan view. That is, thefirst area TSE1 may have an island shape which is separated within thesecond area TSE2. The first area TSE1 may overlap the plurality ofspacers SP.

The plurality of touch sensing electrodes TSE may include the pluralityof conductive fine lines CFL intersecting each other. The plurality ofconductive fine lines CFL may include the plurality of first lines CFL1which extend in one direction, and the plurality of second lines CFL2which extend in a direction intersecting the plurality of first linesCFL1.

In addition, the conductive fine line CFL may not be provided in thefirst area TSE1. Hence, the plurality of spacers SP and the plurality ofconductive fine lines CFL may not overlap each other in the first areaTSE1.

Since the plurality of conductive fine lines CFL and the plurality ofspacers SP do not overlap each other in the first area TSE1, it ispossible to prevent a parasitic capacitor from being formed between theplurality of conductive fine lines CFL and the second electrode CE onthe plurality of spacers SP. Hence, it is possible to prevent touchsensitivity of the display device from decreasing due to parasiticcapacitance of the parasitic capacitor.

FIG. 21 is a partial plan view illustrating a display device accordingto still another embodiment of the present disclosure, FIG. 22 is anenlarged plan view of an area EA5 of FIG. 21, and FIG. 23 is a sectionalview taken along line VI-VI′ of FIG. 22.

Referring to FIG. 1 to FIG. 4, and FIG. 21 to FIG. 23, a display devicemay include the first substrate 110, the plurality of display elementsDD which are arranged on the first substrate 110, the plurality ofspacers SP which are arranged between the plurality of display elementsDD, the second substrate 120 which faces the first substrate 110, andthe plurality of touch sensing electrodes TSE that are arranged on asurface of the second substrate 120 which faces the first substrate 110.

The first substrate 110 may include the display area DA and thenon-display area NDA. The display area DA may include a plurality ofpixel areas. The non-display area NDA may be disposed to be adjacent tothe display area DA. In addition, the first substrate 110 may includethe base substrate SUB, and at least one thin film transistor TFT whichis disposed in each pixel area on the base substrate SUB.

The protection film PSV may be disposed on the base substrate SUB inwhich the thin film transistor TFT is disposed.

The plurality of display elements DD may be arranged on the protectionfilm PSV. The plurality of display elements DD may include the firstelectrode AE which is connected to the thin film transistor TFT, thepixel defining layer PDL which exposes the first electrode AE, the lightemitting layer OL which is disposed on the first electrode AE that isexposed by the pixel defining layer PDL, and the second electrode CEwhich is disposed on the light emitting layer OL.

The plurality of spacers SP may be arranged on the pixel defining layerPDL. The second electrode CE may extend to the pixel defining layer PDLand the plurality of spacers SP. The spacer SP may maintain a constantspace between the first substrate 110 and the second substrate 120.

The second substrate 120 may separate the plurality of display elementsDD from an external environment. In addition, the second substrate 120may contain the same material as the base substrate SUB. The secondsubstrate 120 may adhere to the first substrate 110 by a sealant.

The touch sensing electrode TSE may be disposed between the displayelements DD and the second substrate 120 in the sensing area SA. Forexample, the plurality of touch sensing electrodes TSE may be arrangedon a surface of the second substrate 120 which faces the first substrate110. The touch sensing electrode TSE may include at least one first areaTSE1 and at least one second area TSE2 which is electrically separatedfrom the first area TSE1. The first area TSE1 may be electricallyseparated from other areas. In addition, the second area TSE2 may have ashape which surrounds the first area TSE1 in a plan view. That is, thefirst area TSE1 may have an island shape which is separated within thesecond area TSE2. The first area TSE1 may overlap the plurality ofspacers SP.

The plurality of touch sensing electrodes TSE may include the pluralityof conductive fine lines CFL intersecting each other. The plurality ofconductive fine lines CFL may include the plurality of first lines CFL1which extend in one direction, and the plurality of second lines CFL2which extend in a direction intersecting the plurality of first linesCFL1.

The plurality of conductive fine lines CFL which are arranged in thefirst area TSE1 may be electrically separated from the plurality ofconductive fine lines CFL which are arranged on the second area TSE2.That is, the plurality of conductive fine lines CFL which overlap theplurality of spacers SP may be electrically separated from other areasin the first area TSE1. Hence, even if the conductive fine line CFL mayoverlap the plurality of spacers SP in the first area TSE1, it ispossible to prevent a parasitic capacitor from being formed between theconductive fine line CFL and the second electrode CE on the plurality ofspacers SP. Hence, it is possible to prevent touch sensitivity of thedisplay device from decreasing due to parasitic capacitance of theparasitic capacitor.

The detailed description above exemplifies and explains the presentdisclosure. In addition, the aforementioned description just expressesand explains embodiments of the present disclosure. As described above,the present disclosure may be used in various combinations,modifications, and environment, and may be changed or modified within arange of concept of the disclosure described in the presentspecification, an equivalent range to the described content, and/ortechnology of the art or a range of knowledge. Therefore, theaforementioned description of the disclosure above is not intended tolimit the present disclosure by the described embodiments. In addition,the accompanying scope may be interpreted to include other embodiments.

What is claimed is:
 1. A display device comprising: a first substrate including a plurality of pixel areas; a plurality of display elements disposed on the first substrate; a plurality of spacers disposed between the plurality of pixel areas; a second substrate facing the first substrate; touch sensing electrodes disposed on a surface of the second substrate which faces the first substrate; a filling material disposed between the first substrate and the second substrate; and an encapsulating layer disposed between the filling material and the plurality of display elements, wherein each of the touch sensing electrodes includes at least one first area and at least one second area that is electrically separated from the first area.
 2. The display device of claim 1, wherein the filling material covers the plurality of display elements and the encapsulating layer.
 3. The display device of claim 2, wherein the filling material includes polymer.
 4. The display device of claim 1, further comprising: a pixel defining layer disposed between the plurality of pixel areas, wherein each of the plurality of spacers overlaps with the pixel defining layer when viewed perpendicularly to a major surface of the substrate.
 5. The display device of claim 4, wherein: the each of the touch sensing electrodes includes a plurality of metal mesh lines and an opening part located between the plurality of metal mesh lines, and the second area is an area excluding the opening part.
 6. The display device of claim 5, wherein the plurality of metal mesh lines include: a first conductive layer directly disposed on the surface of the second substrate; and a second conductive layer disposed on the first conductive layer and electrically connected to the first conductive layer through a contact hole in a first cover film, wherein the first cover film is disposed between the first conductive layer and the second conductive layer.
 7. The display device of claim 6, further comprising: a second cover film covering the second conductive layer.
 8. The display device of claim 5, wherein each of the plurality of display elements includes: a first electrode disposed in each of the plurality of pixel areas; the pixel defining layer including an opening exposing a portion of the first electrode; a light emitting layer disposed on the exposed portion of the first electrode; and a second electrode disposed on the light emitting layer, and wherein the plurality of spacers are disposed on the pixel defining layer, and the second electrode is disposed on the pixel defining layer and the plurality of spacers.
 9. The display device of claim 8, wherein the encapsulating layer is disposed between the second electrode and the filling material.
 10. The display device of claim 5, wherein the plurality of metal mesh lines include: a plurality of first metal mesh lines extending in a first direction; and a plurality of second metal mesh lines extending in a second direction intersecting the first direction.
 11. The display device of claim 10, wherein: at least parts of the plurality of display elements are disposed in the opening part of the first area of the each of the touch sensing electrodes; other parts of the plurality of display elements are disposed between the first area and the second area; and remaining parts of the plurality of display elements are disposed in the second area of the each of the touch sensing electrodes.
 12. The display device of claim 10, wherein the first and second metal mesh lines are disposed to correspond to the second area.
 13. The display device of claim 1, wherein the first substrate is adhere to the second substrate by the filling material.
 14. The display device of claim 13, wherein each of the first substrate and the second substrate includes a flexible substrate.
 15. A display device comprising: a substrate including a plurality of pixel areas; a plurality of display elements disposed on the substrate; a pixel defining layer disposed between the plurality of pixel areas; a plurality of spacers disposed between the plurality of pixel areas; an encapsulating layer disposed on the plurality of display elements; and touch sensing electrodes disposed on the encapsulating layer, each of the touch sensing electrodes including a plurality of metal mesh lines and an opening part located between the plurality of metal mesh lines, wherein each of the plurality of spacers overlaps with the pixel defining layer when viewed perpendicularly to a major surface of the substrate, wherein the each of the touch sensing electrodes includes a first area having the opening part and a second area electrically insulated from the first area, wherein the second area is an area excluding the opening part, and wherein at least parts of the plurality of display elements are disposed in the opening part of the first area of the each of the touch sensing electrodes.
 16. The display device of claim 15, wherein: other parts of the plurality of display elements are disposed between the first area and the second area; and remaining parts of the plurality of display elements are disposed in the second region of the each of the touch sensing electrodes.
 17. The display device of claim 15, wherein the opening part is formed by cutting a portion of at least two metal mesh lines extending in one direction among the plurality of metal mesh lines.
 18. The display device of claim 17, wherein the second area has a shape which surrounds the opening part in a plan view.
 19. The display device of claim 18, wherein the plurality of metal mesh lines include first metal mesh lines extending in a first direction and second metal mesh lines extending in a second direction crossing the first direction.
 20. The display device of claim 19, wherein the first and second metal mesh lines are disposed to correspond to the second area. 